Tufty 2040: Basic pretty polygon example.

micropython/examples/tufty2040/polygons.py

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+import time
+import math
+from picographics import PicoGraphics, DISPLAY_TUFTY_2040, PEN_RGB332
+
+display = PicoGraphics(DISPLAY_TUFTY_2040, pen_type=PEN_RGB332)
+display.set_backlight(1.0)
+
+WIDTH, HEIGHT = display.get_bounds()
+
+BLACK = display.create_pen(0, 0, 0)
+
+
+def scaled_sine(start, finish, speed):
+    s = math.sin(time.ticks_ms() / speed)
+    s += 1    # -1 to +1 to 0 to 2
+    s /= 2.0  # 0 to 2 to 0 to 1
+    s *= finish - start
+    s += start
+    return s
+
+
+def regular_polygon(o_x, o_y, sides, radius, rotation):
+    angle = math.radians(360 / sides)
+    rotation = math.radians(rotation)
+
+    points = []
+
+    for side in range(sides):
+        current_angle = side * angle + rotation
+        x = math.cos(current_angle) * radius
+        y = math.sin(current_angle) * radius
+        points.append((int(x) + o_x, int(y) + o_y))
+
+    return points
+
+
+while True:
+    sides = int(scaled_sine(3, 10, 500))
+    rotation = time.ticks_ms() / 10
+    display.set_pen(BLACK)
+    display.clear()
+
+    for y in range(HEIGHT):
+        p = display.create_pen_hsv(y / HEIGHT, 1.0, 1.0)
+        display.set_pen(p)
+        display.line(0, y, WIDTH, y)
+
+    display.set_pen(BLACK)
+
+    points_a = regular_polygon(int(WIDTH / 2), int(HEIGHT / 2), sides, 100, rotation)
+    points_b = regular_polygon(int(WIDTH / 2), int(HEIGHT / 2), sides, 50, -rotation)
+
+    display.pretty_polygon(points_a, points_b)
+
+    display.update()
+
+    time.sleep(1.0 / 60)